Insulation wire holder of power distribution unit

Abstract

The utility model discloses a power distribution unit insulation wire holder, belongs to the technical field of insulation parts, and provides a power distribution unit insulation wire holder with better safety, which comprises a configuration box, two bayonet sockets, a wiring sleeve and a butt joint lead, and is characterized in that the two bayonet sockets are symmetrically inserted into the configuration box; the butt joint leads are connected with the configuration box through the wiring sleeve, the number of the butt joint leads in each group is the same, and the two groups of butt joint leads are connected with the two bayonet sockets respectively. According to the utility model, by designing the bayonet socket and the screwing sleeve which are made of the insulating material, a metal part on the wire holder is well hidden, and meanwhile, the wire holder has good waterproofness, so that the probability of electric leakage and short circuit of a conductive part on the wire holder is greatly reduced, and the use safety of the insulating wire holder is improved; through the design of the pluggable bayonet socket structure, the bayonet socket can be quickly pulled out from the configuration box when an emergency situation occurs in a circuit, such as short circuit of individual branch parts, so that the overall loss is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of insulating components, and in particular to an insulating terminal block for a power distribution unit. Background Art

[0002] In many scenarios, a circuit has only one total power supply, but there are more than one electrical devices in the circuit, which requires a voltage distribution terminal to divert the current of the power supply to different electrical devices.

[0003] However, the existing insulated terminal block of the power distribution unit is non-conductive, but the structure installed on it for fixing the wire end is usually non-insulated and often exposed. It is easy to accidentally touch it during the wiring process, causing leakage or short circuit, which poses a certain risk to both the operator and the connected circuit. Summary of the invention

[0004] The purpose of the present application is to provide an insulating terminal block for a power distribution unit with better safety.

[0005] In order to achieve the above objectives, the present application provides an insulated terminal block of a power distribution unit: comprising a configuration box, a socket, a terminal sleeve and a docking lead, wherein there are two sockets and they are symmetrically plugged into the configuration box, and the docking lead is connected to the configuration box through the terminal sleeve, and there are two groups of docking leads, and the number of docking leads in each group is the same, and the two groups of docking leads are respectively connected to the two sockets to form a complete power supply circuit.

[0006] Preferably, the socket comprises an extension plate, a plurality of branch contacts are fixed to the side of the extension plate, and the branch contacts are suitable for being electrically connected to the docking leads to form a current channel.

[0007] As a preferred embodiment, the configuration box has a wiring groove on the front side, a recessed groove on the back side, and a through hole passing through the recessed groove and the wiring groove. When the extension plate is embedded in the recessed groove, the branch contact will pass through the through hole and contact the conductive end of the docking lead to allow current to pass through.

[0008] Preferably, the socket further includes an insulating end, which is fixedly connected to a side of the extension plate facing away from the branch contact, and a main line slot is provided at one end of the insulating end away from the extension plate for connecting to the main line wires at both ends of the power supply.

[0009] Preferably, a slide groove is provided on the upper surface of the insulating end, and a guide bar is provided on the inner top surface of the sink groove of the configuration box, and the guide bar is suitable for cooperating with the slide groove to form a sliding pair, and a friction strip is provided on the side surface of the insulating end to enhance friction when pushing and pulling the insulating end.

[0010] As a preference, the wiring slots are also divided into two groups, the number of the wiring slots in each group corresponds to the number of the docking leads in each group, the configuration box is provided with a wiring ring surrounding the through hole in the wiring slot, the wiring ring is suitable for cooperating with the wiring sleeve, so as to fix the end of the docking lead to the wiring seat.

[0011] As a preferred embodiment, the wiring sleeve includes an integrated tightening sleeve and an extension end, the inner wall of the tightening sleeve is provided with an internal thread, the outer side of the wiring ring is provided with an external thread, the wiring ring and the tightening sleeve are threadedly connected, the butt lead includes a squeezed contact, the squeezed contact is suitable for contacting the branch contact to achieve electrical connection, the end of the squeezed contact is fixedly connected to a limiting ring, the squeezed contact and the limiting ring are located between the tightening sleeve and the wiring ring, the squeezed contact is connected to an extension wire through the limiting ring, the extension end is provided with a lead hole, the extension wire passes through the extension end through the lead hole, thereby supplying power to the electrical equipment on the branch line.

[0012] As a preferred embodiment, a friction groove is provided on the outer side surface of the tightening sleeve, and a plurality of connector holes are provided on the configuration box for fixing the entire insulating terminal block to the installation position.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] (1) By designing a plug socket and a tightening sleeve structure made of insulating material, the metal part of the terminal block is well hidden, and at the same time, it has good waterproof performance, which greatly reduces the probability of leakage and short circuit of the conductive part of the terminal block, and improves the safety of the use of the insulating terminal block;

[0015] (2) By designing a pluggable socket structure, when an emergency occurs in the circuit, such as a short circuit in an individual branch, the socket can be quickly pulled out of the configuration box to disconnect the main circuit of the entire circuit, and the circuit can be quickly rescued, thereby reducing the overall loss. There is a certain friction between the socket and the configuration box bracket, so the connection stability can be ensured during normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A first view of the overall structure of the insulating terminal block of the power distribution unit;

[0017] Figure 2 A second view of the overall structure of the insulating terminal block of the power distribution unit;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of a configuration box of the insulating terminal block of the power distribution unit;

[0019] Figure 4 A three-dimensional structural cross-sectional view of a distribution box of the insulating terminal block of the power distribution unit;

[0020] Figure 5 A first perspective view of the three-dimensional structure of the plug socket of the insulating wiring socket of the power distribution unit;

[0021] Figure 6 A second view of the three-dimensional structure of the plug socket of the insulating wiring socket of the power distribution unit;

[0022] Figure 7 A first stereoscopic view showing the matching of the wiring sleeve of the insulating wiring seat of the power distribution unit and the butt lead;

[0023] Figure 8 A second stereoscopic view showing the matching of the wiring sleeve of the insulating wiring seat of the power distribution unit and the butt lead;

[0024] Fig. 9 A three-dimensional structural cross-sectional view of a wiring sleeve of an insulating wiring socket of the power distribution unit;

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the butt leads of the insulating terminal block of the power distribution unit.

[0026] In the figure: 1. configuration box; 101. guide strip; 102. sink groove; 103. through hole; 104. connector hole; 105. wiring slot; 106. wiring ring; 2. socket; 201. extension plate; 202. insulation end; 203. branch contact; 205. main line slot; 206. friction strip; 204. slide groove; 3. wiring sleeve; 301. tightening sleeve; 302. extension end; 303. friction groove; 304. lead hole; 4. docking lead; 401. squeezed contact; 402. limit ring; 403. extension line. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] like Figure 1-10 The insulating terminal block of the power distribution unit shown in the figure comprises four relatively detachable parts, namely, a configuration box 1, a socket 2, a wiring sleeve 3 and a docking lead 4. There are two sockets 2 which are symmetrically plugged into the configuration box 1 and are used to connect the bright main line wires of the power supply. The configuration box 1 is provided with a plurality of connector holes 104 for the connectors to pass through and fix the entire insulating terminal block to the installation position. The docking lead 4 is connected to the configuration box 1 through the wiring sleeve 3, and the branch wire represented by the docking lead 4 is connected to the configuration box 1. There are two groups of docking leads 4, and the number of docking leads 4 in each group is the same. The two groups of docking leads 4 are respectively connected to the two sockets 2, so that it can be ensured that the current in each branch can flow from one socket 2 to another socket 2, forming a complete power supply circuit. The socket 2 includes an extension plate 201, and a plurality of branch contacts 203 are fixed on the side of the extension plate 201. The extension plate 201 is in the shape of a long straight plate with a large length and surface area, which is very suitable for installing a plurality of parallel branch contacts 203. The branch contacts 203 are suitable for being electrically connected to the docking lead 4 to realize power supply from the main circuit to a plurality of branch circuits. A wiring groove 105 is provided on the front of the configuration box 1 and a sinking groove 102 is provided on the back. The wiring groove 105 is used to fix the ends of each branch circuit; the sinking groove 102 is used to stabilize the socket 2, and a through hole 103 is provided which passes through the sinking groove 102 and the wiring groove 105. When the extension plate 201 is embedded in the sinking groove 102, the branch contact 203 will pass through the through hole 103 and contact the conductive end of the docking lead 4.

[0032] There are also two groups of wiring slots 105. The number of wiring slots 105 in each group corresponds to the number of docking leads 4 in each group, ensuring that each docking lead 4 can be connected to the configuration box 1 in one wiring slot 105. The configuration box 1 is provided with a wiring ring 106 surrounding the through hole 103 in the wiring slot 105. The wiring ring 106 is suitable for cooperating with the wiring sleeve 3. The wiring sleeve 3 includes an integrated tightening sleeve 301 and an extension end 302, both of which are integrally formed of insulating materials. The outer side surface of the tightening sleeve 301 is provided with a friction groove 303 to ensure sufficient friction when the tightening sleeve 301 is rotated. The inner wall of the tightening sleeve 301 is provided with an internal thread, and the outer side of the wiring ring 106 is provided with an external thread. The wiring ring 106 is threadedly connected to the tightening sleeve 301. This connection method has strong stability and good waterproof performance. The docking lead 4 includes a squeezed contact 401, which is squeezed. 401 is suitable for contacting with the branch contact 203 to achieve electrical connection. The end of the squeezed contact 401 is fixedly connected to the limit ring 402. The squeezed contact 401 and the limit ring 402 are located between the tightening sleeve 301 and the wiring ring 106. The limit ring 402 can prevent the squeezed contact 401 from escaping from the wiring sleeve 3. When the tightening sleeve 301 is screwed in relative to the wiring ring 106, the squeezed contact 401 will be pushed to dock with the branch contact 203 through the limit ring 402. The squeezed contact 401 is connected to the extension line 403 through the limit ring 402. The extension end 302 is provided with a lead hole 304. The extension line 403 passes through the extension end 302 through the lead hole 304, thereby supplying power to the power unit on the branch line. Since the extension line 403 can be in close contact with the lead hole 304, the insulating terminal block also has good waterproof properties.

[0033] The socket 2 also includes an insulating end 202, which is fixedly connected to the side of the extension plate 201 facing away from the branch contact 203. The insulating end 202 and the outer shell of the extension plate 201 are both made of insulating materials. A main line slot 205 is provided at the end of the insulating end 202 away from the extension plate 201, and there is electrical connection between the conductor and the corresponding branch contact 203 inside. A slide groove 204 is provided on the upper surface of the insulating end 202. The configuration box 1 is provided with a guide bar 101 on the inner top surface of the sink groove 102. The guide bar 101 is suitable for cooperating with the slide groove 204 to form a sliding pair, so that the socket 2 has better stability when being plugged into the configuration box 1, and has higher stability after installation. The side of the insulating end 202 is provided with a friction strip 206, which has higher friction when pushing and pulling the insulating end 202, effectively reducing the slipping of fingers when disassembling and assembling the socket 2.

[0034] The insulated wiring socket of the power distribution unit is used as follows: the two sockets 2 are respectively connected to the positive and negative leads of the power supply through their respective main line slots 205, and then the two sockets 2 are inserted into the sink 102 of the configuration box 1 along the guide structure. During the insertion process, the branch contacts 203 on the socket 2 will naturally pass through the through holes 103 of the configuration box 1 and extend into the wiring slots 105. Since the two groups of wiring slots 105 are usually marked with corresponding colors or symbols to facilitate correspondence and distinction, it is easy to find the positive and negative terminals by selecting two wiring slots 105 for an electrical device connected to a pair of docking leads 4, and then the two docking leads 4 are connected to the wiring socket in the positive and negative directions through the wiring sleeve 3. Continue to connect other branch electrical devices according to this step, so that only one power supply is needed to provide the same voltage to multiple electrical devices located in different branches, thereby realizing power supply distribution.

[0035] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An insulating terminal block for a power distribution unit, characterized in that: It includes a configuration box, a socket, a wiring sleeve and a docking lead. There are two sockets, which are symmetrically plugged into the configuration box. The docking lead is connected to the configuration box through the wiring sleeve. There are two groups of docking leads, and the number of docking leads in each group is the same. The two groups of docking leads are respectively connected to the two sockets.

2. The insulating terminal block of the power distribution unit according to claim 1, characterized in that: The socket includes an extension plate, and a plurality of branch contacts are fixed on the side of the extension plate. The branch contacts are suitable for being electrically connected to the butt leads.

3. The insulating terminal block of the power distribution unit according to claim 2, characterized in that: The configuration box has a wiring groove on the front side, a recessed groove on the back side, and a through hole passing through the recessed groove and the wiring groove. When the extension plate is embedded in the recessed groove, the branch contact will pass through the through hole and contact the conductive end of the docking lead.

4. The insulating terminal block of the power distribution unit according to claim 3, characterized in that: The socket further comprises an insulating end, which is fixedly connected to a side of the extension plate facing away from the branch contact, and a main line slot is provided at one end of the insulation end away from the extension plate.

5. The insulating terminal block of the power distribution unit according to claim 4, characterized in that: A slide groove is provided on the upper surface of the insulating end, and a guide bar is provided on the inner top surface of the sink groove of the configuration box. The guide bar is suitable for cooperating with the slide groove to form a sliding pair, and a friction strip is provided on the side surface of the insulating end.

6. The insulating terminal block of the power distribution unit according to claim 3, characterized in that: There are also two groups of wiring slots, and the number of wiring slots in each group corresponds to the number of docking leads in each group. The configuration box is provided with a wiring ring surrounding the through hole in the wiring slot, and the wiring ring is suitable for cooperating with the wiring sleeve.

7. The insulating terminal block of the power distribution unit according to claim 6, characterized in that: The wiring sleeve includes an integrated tightening sleeve and an extension end, the inner wall of the tightening sleeve is provided with an internal thread, the outer side of the wiring ring is provided with an external thread, the wiring ring and the tightening sleeve are threadedly connected, the butt lead includes a squeezed contact, the squeezed contact is suitable for contacting the branch contact to achieve electrical connection, the end of the squeezed contact is fixedly connected to a limiting ring, the squeezed contact and the limiting ring are located between the tightening sleeve and the wiring ring, the squeezed contact is connected to an extension wire through the limiting ring, the extension end is provided with a lead hole, and the extension wire passes through the extension end through the lead hole.

8. The insulating terminal block of the power distribution unit according to claim 7, characterized in that: The outer side surface of the tightening sleeve is provided with a friction groove, and the configuration box is provided with a plurality of connecting member holes.

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